Scilab Wavelet Toolbox Function
Last update : Feburary 2006

qmf - quadrature mirror function

Calling Sequence

b=qmf(a)

Parameters

Description

This function flips the input vector. And the odd-indexed value would be multiplied with -1. Input should be vector no matter row vector or column vector. Output would be row vector.

Examples

-->a=[1 2 3 4 5];
-->b=qmf(a)
 ans =

-5 4 -3 2 -1

-->a=a';
-->b=qmf(a)
 ans =

-5 4 -3 2 -1

-->a=[1 2 3;4 5 6];
-->b=qmf(a)
Input should be vectors rather than matrixes!

-->a=1;
-->b=qmf(a)
Input should be vectors!

  

See Also

wrev